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The Moment of Zuke:
Critical Positions and
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by David Rudel
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7 modules written just for Colle System Players. Over 150 practice problems accompany lessons written in Rudel's crystal-clear, inimitable style

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Chessprint
April 27, 2008

[FEN 8/8/4p3/4B1r1/1p6/1KN4b/8/k1N2Rr1 w - - 0 1]

White to mate in two

Solution

[Index of Chessprints]

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Solution

Today's position comes from:
What is a Chess Problem?
Peter's Problem World
with FIDE Master
of Chess Composition Peter Wong

White begins with 1.Kc2!, after which the threat is 2.Nb3 mate. Black can parry this threat with various defences, but these moves enable White to mate in other ways. For example, 1…bxc3 2.Bxc3 – the two moves here, Black’s defence and White’s correct response, constitute a variation.

Otto Wurzburg
American Chess Bulletin 1942

The main variations of this problem are 1…Bf5+ 2.Ne4, 1…R1g2+ 2.N1e2, and 1...R5g2+ 2.N3e2. These lines represent the thematic play because they share a number of elements: Black checks, but un-guards a white piece (rook or bishop) that is trained on the black king, allowing White to answer the check by interposing a knight, and discover mate at the same time.

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